.fkbj{
	width: 10rem;
	position: fixed;
	top: 0;
	z-index: 10;
	text-align: center;
	opacity: 0.8;
	background-color: #000000;
	height: 18rem;
}
.fkbj img{
	width: 8rem;
	display: block;
	margin: 0 auto;
}
.fkbt{
	width: 8rem;
	line-height: 1rem;
	margin-top: 1rem;
	margin-left: auto;
	margin-right: auto;
	border-radius: 1rem;
	background-color: #FFF;
}
#a{
	color: #FFF;
	font-size: 1rem;
}